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-OPERATING CONTROLS AND FUNCTIONS –
(1) Power Switch: Push ‘ON’ Push ‘OFF’ switch. Pressing the button once will turn the power
ON and pressing it again will turn the power off.
(2) Volume Control: Turning the knob clockwise will increase the sound volume.
(3) Tone Squelch (TSQ)/Squelch Control. This control is used to eliminate annoying
background noise when no signal is present. To adjust the control properly for reception,
first turn the knob counterclockwise until background noise is heard. Then rotate it slowly
clockwise until background just disappears. Leave the knob at this position for normal use.
If the squelch control is turned further clockwise, stronger signals will be required to open
the squelch and allow reception.
When the knob is set to the “T.SQ” position, the squelch will open only for signals that
accompany a certain designated sub audible tone frequency. (An optional tone squelch unit
is required)
(4) Keyboard Switches: The keyboard switches are used to select various operation modes
programmed inside the microcomputer. All the keys are LED illuminated for easy location
in darkness. Refer to ‘Details of Keyboard” for each key operation and function.
(5) Minus (—) Shift Indicator: When the indicator is lit, transmission occurs at a frequency
below the receiving frequency, according to the preset value of shift.
(6) Plus (+) Shift Indicator: When the indicator (+) is lit, transmission occurs at a frequency
above the receiving frequency, according to the preset value of shift.
(7) Duplex (“DUP”) Indicator: When the indicator (DUP) is lit in calling memory channel, it
means that the receiving frequency and transmitting frequency is differently set up from
each other.
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